Methanol ice co-desorption as a mechanism to explain cold methanol in the gas-phase

N. F. W. Ligterink; C. Walsh; R. G. Bhuin; S. Vissapragada; J. Terwisscha van Scheltinga; H. Linnartz

doi:10.1051/0004-6361/201731893

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Volume 612 (April 2018)

A&A, 612 (2018) A88

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Fig. 2

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Desorption profile of the 1:24 ¹³CH₃OH:CO mixture, heated at 1 K min⁻¹. CO is traced by m∕z 16 (black) and desorbs just above 30 K, while ¹³C-methanol is traced by m∕z 33 (red) and desorbs around 130 K. The presence of m∕z 16 at the methanol desorption peak is due to the ¹³CH₃ (= 16 amu) fragment.

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